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Instrumentation Interview Questions
Questions Answers Views Company eMail

whats the working principle of level transmeter?

6 43317

Can Any body tell me how to check Modbus Settings in ER300N L&T trivector meter?

1456

what is meant by control valve sizing?

3 6484

Basically iam Instruemntation Engineer, but Iam interested in Instruments design engineering, so plz guide, is there any course, training or Softwres to become Instrument design engineer??.

Honeywell, Tata Steel Limited,

1102

how can you change unit of totalizer in siemens mag 5000 flow meter?

PowerTech,

2 7735

What is the SCAN time of a DCS/PLC? What is the typical value for scan time of DCS and PLC?

Essar, Gasco, Siemens,

6 44303

How to carry out hot loop checking of closed loop pf temperature control valve & temperature transmitter?

2 7911

what is Mv with respect to temprature in thermocouple

2 3780

what is difference b/w the solinoid volve and autodrain?

3 4485

can any one help me to get bel probational engineers sample question papers. I have applied for it.

1120

what is hart communicater? can u give brief explanation about this issue?

3 6136

How to isolate a DPT from line in the condition that process must not be disturbed,and process is also critical and no bypass is available.?

Descon,

4 7957

how to calibrate steam control valve in steam turbine

2278

how to calculate flow range in DP tx

Karnataka Power,

1 4788

if i change range of flow transmitter in th field then does it need to change range in dcs?

3 6004


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Un-Answered Questions { Instrumentation }

How RAL(Rotary air lock)works in cement industry?

1403


how to convert MA in to measuring values..and how mwasuring values into MA ?..plz ansr.i have intervw

1541


Hi, Is there any smart plant instrumentation design training institute in Bangalore?

703


In a gas over oil actuator, after the opening/closing of valve, how the gas is vented out? How does the hydraulic/gas circuit function?

954


how to control pid

977






What is the main difference between Cavitation and Flashing?

12532


how to convert cubic metre per hour to newton cubic metre per hour

1131


NPN transistor, SCR, Zener diode, LED, Varactor diode, Vortex meter, RTD, Resistor, Crystal

1309


Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com

1924


Using your own examples solve a problem involving normal table. (experimental method and analysis)

219


Why grounding is necessary? Give example with diagram.

1303


Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72

1174


what is the responsibility of an instrument commissioning supervisor

2150


What is three element in drum level?

459


send me HPCL paper

6293